add the ability to turn off or disable keyboard shortcuts

Details

Description

I work on a mac and my browser supports emacs key bindings for editing in a browser's text box, but JIRA overrides these with keyboard shortcuts. For example I pree Ctrl-a to go to the beginning of the line in a text box and JIRA takes me to a new page to add an attachment to the issue.

This is very annoying. I do not use JIRA keyboard shortcuts and I have no interest in using them, and yet they cripple my standard text editing style.